Resilient seat mount



Nov. 5, 1929. c. PALLENBERG RESILIENT SEAT MOUNT Filed Jan. 14. Wwa

Tliru uv Patented Nov. 5, 1929 UNITED STATES CHRISTIAN IPALLENBERG, F CLINTON, CONNECTICUT VRESILIENT SEAT MOUNT Application filed January 14, 1928, Serial No.. 246,664.

This invention relates to animprovement in resilient seat-mounts whlch are particularly adapted for use in automobiles, but also useful inother situations where a shock-absorbing seat is desirable.

The object of this invention is to produce a simple and rugged resilient seat-mount having provision for maintaining parallelism between the seat and its support and constructed with particular reference to economy of space in the vertical plane.

A further object of this invention is to provide a resilient seat-mount organized so-that i it may be handled and installed as a self-contained unit.

With these objects in view, my invention consists in a resilient seat-mount characterizedby having a seat-frame and a support therefor, means for maintaining the said seatframe in parallel relation to the said support, and an elliptic spring comprising two bowed reaches respectively fastened to the said seat and the said support, so as to yieldingly anchor them together against relative lateral movement while permitting the said seatframe to closely approach the said support.

My invention further consists in a resilient seat-mount characterized as above and having certain other details of construction and combinations of parts as will be hereinafter described and particularly recited in the claims.

In the accompanying drawings:

Fig. 1 is a top or plan view, partly in section, of a resilient seat-mount constructed in accordance with my invention;

' Fig. 2 is a side view thereof;

Fig. 3 is an end view thereof;

Fig. 4 is an enlarged-scale detail sectional view on the line 44.- of Fig. 2;

Fig. 5 is a corresponding view on the line 5-5 of Fig. 2;.

Fig. 6 is a similar view on the line 6-6 of Fig. 2; and

I Fig. 7 is a side view corresponding to Fig. 2 45 but showing another form which my invention may assume.

In carrying out my invention as shown in Figs. 1 to 6 inclusive, I employ a seat-frame 10 and a corresponding base-frame 11, each formed of angle-iron side and end=bars which.

are coupled together byhaving angle-braces 12 brazed or weldedto their abutting ends.

For the purpose of maintaining the respective frames 10 and 11 parallelas the former is moved toward and away from the latter, I mount, adjacent each of the fouredges of the seat-frame 10, a pair of crossed equalizer-bars 13and 13 which are pivoted together midway of their ends by a stud 14. Each of'the equalizer-bars'13 and l is provided at its respective opposite ends with an inwardly-project ing 'stud .15 which passes through a tubular spacer 16 and a retaining-washer 17. A tubular anti-friction ro1ler'18 is sleeved over the spacer 16 and is retained thereon by the retaming-washer 17 aforesaid. The anti-friction rollers 18 are entered into slots 19, one of which is formed near each of the opposite ends ofthe side and end-bars of'the respective frames 10 and 11. As clearly shown in the drawings, each equalizer-bar extends diagonally between one corner of the base frame 11 and the opposite corner of the seat-frame 10, which'latter mounts a seat of any approved type, herein represented bythe broken lines 20.

- "For the dualpurpose of resiliently supporting the seat-frame 10 with reference to the base-frame' ll and providing for preventing undue lateral .movement of the frame with v respect "to the latter, I employ a pair of complementary elliptic springs, each comprising an upper reach 21 and a lower reach 22, the respective opposite ends of which are folded together as at 23. These elliptic springs are positioned parallel with and adjacent to the side-bars of the respective frames 10 and 11 and have their upper reaches 21 yieldingly secured to the said frame 10 by a pair of spaced rubber-blocks 2 1,which, in turn, are supported by studs 25 extending downward from the said frame. The centers of the upper reaches 21 are perforated for the passage of a threaded stud 26 also extending downward from the respective side-bars of 9 the frame. The upper and lower faces of the said'upper reaches21 are engaged respectively by adjusting-nuts 27 and 28, as especially shown in Fig. f the drawings.

The lower reaches 22 of the elliptiesprings are similarly mounted to the base-frame 11 by means of a pair of rubber-blocks 29 supported by studs upstanding from the sidebars of the said frame 11. The center of the said reaches are perforated for the passage of a threaded stud 31, one of which also upstands from ea of the s id ele-barsef th seframe and upon which adjustingmuts 32 and 33 are mounted in a manner corresponding to the manner in which the nuts 27 and '28 are mounted upon the stud 26v above described and for a similar purpose.

It will be obvious from the drawings and the foregoing description that the seatframe 10 is caused to' move toward the baseframe 11, it will be maintained inparallelism with the latter by the equalizer-bars l3 and 13, the rollers at the respective opposite ends of which slide at this time in the slots 19; The elliptic springs will yieldingly re; sist the movement just described, and, at the same time, prevent undue lateral jmovement ofthe seat-frame 1 0 with respect to the baseframe 11, so that I am enabled to dispense with the complicated and noisy meanscom:

monly employed for this purpose.

By adjusting the center of either or both of the reaches 21 and 22 of the elliptic springs toward and away from the respective frames, the tension of the said elliptic springsmay be varied as may also the normal spacing apart of the said frames 10 and 11," This adjustment may be effected by the adj ustingnuts 2728 or 32-33, either or both; the rubber-blocks24 yielding sufiiciently to per mit this adjustment.

1 In Fig, 7 of the drawings, I have shown another method ofadjusting the elliptic springs. In this instance, the respective reaches 21 and 22 ofthe elliptic springs are secured directly to the side-bars of the re? spective frameslO and 11' by rivets 3st and are prevented fromrooking by spacerbl0ck s 35-, one of which is located upon each of the opposite sides of the rivets 34. .The said elliptic springs may be adjusted in tension by means of a pair of tie-rods 36 and 37 threaded at their adjacent ends and coupled tegether by a turnbuckle-coupling'38. j The outerendof the rod 33 is coupled to. the adjacent end of the elliptic spring by a pin 39, while the outer end of the rod 37 is secured to a helical spring 40 having its outer end in turn connected to a short rod 41 which, li e the r el 6, s coup ed to the adja nt end f th l ipt e pr ng by a correspo ding Pin 4J is V I wish t eall pe ti ule att nt on he he fee ha by empl ying ellipt c springs, the

a pair of spaced-apart resilient blocks interposed between one of the said bowed spring- .7

members and the part to which it is secured; tensioning means engaging the said spring member intermediate the two saidspacedapart resilient blocks to adjustably vary the curvature of the bowed spring and" hence vary the hei respect to its support.

In testimony whereof, I specification, i

y CHRISTIAN gned this 0 t e a d se e r me' w t e p ivee ches 9. wh ch a e C up ed to f t e ire-mes .10 and 1,1, I net- 'nly prevent urdue ateral movement of th seat-fram 19, b t p rm t he eat rame to very e e ely eapprbach the lbesezfreme ll "suflieient leed s 11pm; tlhe's et120. The height of my 

